There was a combined $348 million of farms and rural land for sale in Ottawa County, Michigan, recently on Land.com. The total acreage of all Ottawa County farms, hunting land and other rural land and acreage for sale was around 2,000 acres. Ottawa County ranks third out of 83 counties in the Wolverine State for the total acreage of land currently advertised for sale. Among cities in Ottawa County with land and rural real estate for sale, Holland had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Ottawa County. Ottawa County is Michigan's 17th largest county (1,631 square miles). It's located in the West Central Michigan region of Michigan.